word "interest" in Greek refers to one hundredth part of the number.In mathematics, and in the world, it is considered to be an absolute 100%.Based on this principle, built all the computing rules.
There are several options for jobs related with the aim to calculate the percentage of the number.Each such task has its own individual concept solutions.
Find the percentage of the number of
in the problem given a specific numerical value and need to find its interest.For example, we have the number 47 and it is necessary to calculate 25%.
Solution: To solve the original number we accept 100%.Thereafter, this percentage is translated in decimal, and we see that 25% = 0.25.Multiply 47 by the percentage expressed as a fraction, and obtain the required number of 47 * 0.25 = 11.75.
A: 11.75 is 25% of the number 47.
Find the number on the percentage
following types of tasks related to the question of how to find the percentage of the number, is the calculation of the value of having a percent.Given that 57 or 45% of some number.Required to find the number.
Solution: To solve this problem, it is necessary to divide the number available to the percentage that it makes the whole.Thus, we find that the 57 / 0.45 = 126.67.To better understand the action, it is superfluous to thoroughly understand the whole process.57 - 45% of it, i.e.to find a value of one percent, the number must be divided by the number percent.It turns out that 1% of the whole number is equal to 1.2667.Next to find a whole, we received value multiplied by 100.
Answer: The number, 45% of which is 57, is equal to 126.67.
Find what percentage one number is of another
little harder submitted jobs that need to find a percentage value that is one number from another.How to find the percentage of the number in this case?The answer is very simple.Consider it a small example.We have two numbers assume that this 45 and 58. To find out how much is 45 percent of the 58 necessary to multiply it by 100 and divide by 58. We find that 45 - a 77.6% of the 58.
You can often see situations where people do not understand how to change the price of the product, if it is to rise by 15%.People forget the elementary school mathematics and for this reason are wondering how to find the percentage of the number.
particularly important knowledge interest communication in the exchange of communications and transactions.Making contributions to a bank account, we are also dealing with interest.There is often the principle of floating interest or capitalization, which is a bit complicated principle of computation of the final outcome.
As we can see, with a little repetition, you can easily recall or re-learn how to find the percentage of the number, and in general, how to work with such mathematical and financial units.This knowledge will not only expand the overall human vision, but also help to focus more confident in situations with changes in prices, exchange rates, bank interest rates, profit margins and other very important processes.Of course, at first glance it seems that the ability to calculate in your mind can save a few seconds, but minute gained from taking a decision may result in a few days released in a year.
